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<head><meta charset="utf-8"><title>LLVM 9 support · t-compiler/wg-llvm · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/187780-t-compiler/wg-llvm/index.html">t-compiler/wg-llvm</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/187780-t-compiler/wg-llvm/topic/LLVM.209.20support.html">LLVM 9 support</a></h3>

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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187780-t-compiler/wg-llvm/topic/LLVM%209%20support/near/243855869" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Patrick Walton <a href="https://rust-lang.github.io/zulip_archive/stream/187780-t-compiler/wg-llvm/topic/LLVM.209.20support.html#243855869">(Jun 24 2021 at 22:47)</a>:</h4>
<p>Is there any particular incompatibility with LLVM 9 that motivated dropping it? For now we need LLVM 9 support to continue using ASan on mixed Rust/C++ binaries. I'm planning on maintaining this support internally and I was wondering if there are any problems I should be aware of.</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187780-t-compiler/wg-llvm/topic/LLVM%209%20support/near/243860129" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/187780-t-compiler/wg-llvm/topic/LLVM.209.20support.html#243860129">(Jun 24 2021 at 23:41)</a>:</h4>
<p>asm! support partially landed in LLVM 10, I think, based on commentary on <a href="https://github.com/rust-lang/rust/pull/83387">https://github.com/rust-lang/rust/pull/83387</a></p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187780-t-compiler/wg-llvm/topic/LLVM%209%20support/near/243865631" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Josh Triplett <a href="https://rust-lang.github.io/zulip_archive/stream/187780-t-compiler/wg-llvm/topic/LLVM.209.20support.html#243865631">(Jun 25 2021 at 01:05)</a>:</h4>
<p><span class="user-mention" data-user-id="384014">@Patrick Walton</span> Is that an issue with ASan in general, or just because you're using a C++ toolchain based on LLVM 9 and it'll take time before that C++ toolchain can be upgraded?</p>



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<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187780-t-compiler/wg-llvm/topic/LLVM%209%20support/near/243865694" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Patrick Walton <a href="https://rust-lang.github.io/zulip_archive/stream/187780-t-compiler/wg-llvm/topic/LLVM.209.20support.html#243865694">(Jun 25 2021 at 01:06)</a>:</h4>
<p><span class="user-mention silent" data-user-id="239881">Josh Triplett</span> <a href="#narrow/stream/187780-t-compiler.2Fwg-llvm/topic/LLVM.209.20support/near/243865631">said</a>:</p>
<blockquote>
<p><span class="user-mention silent" data-user-id="384014">Patrick Walton</span> Is that an issue with ASan in general, or just because you're using a C++ toolchain based on LLVM 9 and it'll take time before that C++ toolchain can be upgraded?</p>
</blockquote>
<p>The latter</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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